[A320] 满足大家的要求，继续发CBT章节翻译29章

01 HYDRAULIC POWER
Hydraulic System Users
液压系统用户
GREEN, BLUE, YELLOW USERS 绿，蓝，黄系统
The three independent hydraulic systems respectively supply the users indicated on the diagram. Between these systems, the users are shared
in order to ensure the aircraft control, even if only one hydraulic system is inoperative. On the blue hydraulic system, the Constant
Speed Motor/Generator (CSM/G) is used to provide aircraft electrical power in case of emergency.
上图为三个独立的液压系统供压用户指示图。为预防只有一个液压系统工作的情况，三个系统之间都参与对飞机的控制。对于蓝液压系统，恒速马达/发
电机（CSM/G）被用于给飞机电网提供应急供电。
GREEN, BLUE, YELLOW USERS...PRIORITY VALVES 绿，蓝，黄系统...优先活门
In the event of low hydraulic pressure, the priority valves maintain the operation of essential systems by cutting off hydraulic power
to heavy load users.
当出现液压系统低压时，优先活门会切断负载过大的系统供压，供给应急系统。
SYSTEM OVERVIEW 系统回顾
On the green system the normal source of pressure is the Engine Driven Pump (EDP) and as auxiliary source the Power Transfer Unit (PTU).
对于绿系统，正常压力来源是发动机驱动泵（EDP），备用压力来源是能量转换装置（PTU）。
On the blue system the normal source of pressure is the electrical pump (E-Pump) and as auxiliary source the Ram Air Turbine (RAT).
对于蓝系统，正常压力来源是电动泵（E-Pump）备用压力来源是冲压空气涡轮（RAT）。
NOTE: The blue electric pump can be used as an auxiliary power source for maintenance purposes on ground.
注：蓝色电动泵能作为辅助动力来源用于地面维护用途。
On the yellow system the normal source of pressure is the Engine Driven Pump (EDP) and as auxiliary sources the Power Transfer Unit (PTU)
and the electric pump (E- Pump).
对于黄系统，正常压力来源是发动机驱动泵（EDP），备用压力来源是电动泵（E-Pump）
NOTE: The yellow system also has a hand pump dedicated to cargo door operation.
注：黄系统拥有一个手摇泵用于货舱门操作。
SYSTEM OVERVIEW - PTU 系统回顾-动力传送装置
The Power Transfer Unit (PTU) is an auxiliary pressure supply for either the green or yellow systems without transfer of fluid between
the two systems.
动力转换装置作为绿系统或蓝系统的辅助压力供应，只在两个系统间传递动力，不传递液体。
It operates automatically if there is a delta pressure of 500psi between the green / yellow or yellow / green hydraulic systems.
当绿/黄或黄/绿液压系统之间压差达到500PSI 时，它会自动工作。
The side operating as a pump will take fluid from its associated reservoir and provide an output through the PTU manifold to the HP manifold.
PTU 上的泵将油液从相关的油箱抽出，通过PTU 总管供给到HP 总管。
The motor side is supplied from the HP manifold through the PTU manifold, and is connected to the return system.
PTU 的马达端的油液由HP 总管通过PTU 总管提供。它被连接在回油系统上。
Each section of the PTU has a case drain connection to the return system.
PTU 的每一段都有一个排放连接到回油系统中。